AI for your role

AI for Controllers

Close faster, reconcile cleaner, and report with confidence.

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The shift

How AI is changing the Controller role

In 2026, AI is taking over much of the repetitive work that fills a Controller's month, including transaction matching, bank and account reconciliations, and first drafts of variance commentary. Tools now flag anomalies in the general ledger before close instead of after, so issues surface earlier. The Controller's time shifts toward reviewing exceptions, explaining results to leadership, and tightening internal controls.

What AI can take off your plate

  • Account reconciliations and transaction matching for high-volume accounts
  • First drafts of variance and flux commentary for management reporting
  • Coding and routing of accounts payable invoices
  • Anomaly detection in the general ledger before close completes
  • Assembling the close checklist and tracking task status

What stays distinctly human

  • Final judgment on accounting estimates, reserves, and unusual transactions
  • Explaining results and risks to the CFO, auditors, and board
  • Designing and enforcing internal controls and approval policies
  • Interpreting new accounting standards for the company's specific facts
  • Building trust with the team, auditors, and external stakeholders
Tools

Five AI tools for Controllers

BlackLine
A Controller uses it to automate account reconciliations and match transactions, flagging only the items that need human review.
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Microsoft Copilot in Excel
A Controller uses it to build formulas, summarize large GL exports, and draft variance explanations directly inside working files.
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ChatGPT
A Controller uses it to draft accounting memos, summarize technical guidance, and write clear footnote language for review.
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Vic.ai
A Controller uses it to code and approve accounts payable invoices automatically, reducing manual data entry during close.
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FloQast
A Controller uses it to manage the close checklist, tie out reconciliations to the trial balance, and track team progress in real time.
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Prompts

Five prompts to try today

Paste these into Claude or ChatGPT and replace the bracketed parts with your own details.

1. Variance commentary draft
Here is my budget vs actual data for [department] for [month]: [paste data]. Write a concise variance explanation for each line item over [threshold] dollars or [percent], using plain business language for the CFO.
2. Reconciliation review
Review this account reconciliation for [account name]: [paste data]. Identify any unreconciled items, stale balances, or amounts that look unusual compared to a balance of roughly [expected amount], and list what I should investigate.
3. Accounting memo
Draft an accounting memo addressing how to treat [transaction or issue] under [GAAP or IFRS]. Include the relevant standard, the analysis, our conclusion, and the journal entry. Keep it to one page.
4. Close checklist build
Create a month-end close checklist for a [industry] company with [number] entities. Organize tasks by day, assign owners as placeholders, and note dependencies for [revenue, AP, payroll, intercompany].
5. Flux analysis questions
Here is our P&L compared to prior month: [paste data]. List the top 10 questions I should ask department heads about the largest changes, and note which lines may indicate a posting error.
The playbook

Every AI play for Controllers

The full library of tools, prompts, and tricks for your role — updated every week. Tap any card for a step-by-step walkthrough and examples.

✦  New tools, prompts, and tricks are added every week — and go straight to subscribers in their morning brief. Skip the scrolling and get yours delivered free. Get my free brief →
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A day in your inbox

This is the kind of brief a Controller gets, every weekday morning.
Monday morning
✦ Personalized for: Controller
Today's Tool
Speed reconciliations with BlackLine
Connect your bank and GL feeds so BlackLine auto-matches routine transactions and surfaces only exceptions. This turns a multi-day reconciliation into a focused review of the items that actually need your attention.
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Today's Prompt
Generate variance commentary fast
Paste your budget versus actual data and ask the assistant to explain every variance above your threshold in plain language. You then verify the numbers and adjust the narrative before it reaches the CFO.
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Today's Trick
Always make AI show its source line
When AI drafts commentary or memos, require it to cite the specific account or standard it relied on. This makes errors easy to catch and keeps your review defensible during the audit.
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Today’s three are just the start — go deeper on your role.
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